Unraveling competition versus adsorbability of dissolved organic matter against organic micropollutants onto activated carbon
文献类型：期刊论文
| 作者 | Wang, Qi ; Zietzschmann, Frederik; Hofman-Caris, Roberta; Jiang, Nan; Schuster, Jonas; Wang, Zheng; Yu, Jianwei; Yang, Min; Rietveld, Luuk C.
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| 刊名 | SEPARATION AND PURIFICATION TECHNOLOGY
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| 出版日期 | 2022-07-01 |
| 卷号 | 292期号:0页码:120942 |
| ISSN号 | 1383-5866 |
| 关键词 | MICRO-POLLUTANTS ADSORPTION CARBAMAZEPINE CONTAMINANTS SORPTION REMOVAL WATER BIOCHAR NOM 2-METHYLISOBORNEOL |
| 英文摘要 | It was widely acknowledged that dissolved organic matter (DOM) in natural water has ubiquitous competitiveness against organic micropollutants (OMPs) during adsorption onto activated carbon. However, some (model) low molecular weight organics have been reported to adsorb onto activated carbon, but were not competitive against co-adsorbates. The objective of this study is to identify which adsorbable DOM fractions in natural water contribute to the DOM competitiveness, and what is the impact of the OMP adsorbability and initial OMP concentration on this competitiveness. We, therefore, disassociated the adsorption of DOM fractions and OMPs (carbamazepine, caffeine and sulfamethoxazole) using a two-stage adsorption procedure, removing various adsorbable DOM fractions with powdered activated carbon pretreatment and then unraveling the competitiveness against OMPs of the remaining DOM. Our results demonstrated that DOM competition was not ubiquitous for all adsorbable fractions in natural water, and ~ 25% of the adsorbable DOM was not competitive. The poorly adsorbable DOM was shown to be a non-competitive co-adsorbate, and its complexation even elevated the adsorption capacity of one of the OMPs (carbamazepine). The amount of DOM competitors increased for weaker adsorbable OMPs, and at higher initial OMP concentrations. The variability in DOM competition, differentiated by DOM adsorbability, has advanced the understanding of DOM competition, from ubiquitous competition to variable roles (varying competitiveness/complementary adsorption) of differently adsorbable DOM fractions during OMP adsorption. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47915]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 通讯作者 | Yu, Jianwei |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China 2.Delft Univ Technol, Dept Water Management, POB 5048, NL-2600 GA Delft, Netherlands 3.KWR Watercycle Res Inst, NL-3433 PE Nieuwegein, Netherlands 4.Berliner Wasserbetriebe, Motardstr 35, D-13629 Berlin, Germany 5.Hamburg Univ Technol, Inst Water Resources & Water Supply, Schwarzenberg Campus 3, D-20173 Hamb |
| 推荐引用方式 GB/T 7714 | Wang, Qi,Zietzschmann, Frederik,Hofman-Caris, Roberta,et al. Unraveling competition versus adsorbability of dissolved organic matter against organic micropollutants onto activated carbon[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2022,292(0):120942. |
| APA | Wang, Qi.,Zietzschmann, Frederik.,Hofman-Caris, Roberta.,Jiang, Nan.,Schuster, Jonas.,...&Rietveld, Luuk C..(2022).Unraveling competition versus adsorbability of dissolved organic matter against organic micropollutants onto activated carbon.SEPARATION AND PURIFICATION TECHNOLOGY,292(0),120942. |
| MLA | Wang, Qi,et al."Unraveling competition versus adsorbability of dissolved organic matter against organic micropollutants onto activated carbon".SEPARATION AND PURIFICATION TECHNOLOGY 292.0(2022):120942. |
入库方式： OAI收割
来源：生态环境研究中心
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